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In view of problem that current training methods for shearer operation can not show three-dimensional operation process of shearer from multi-angle, virtual training system based on Quest3D was designed. The system consists of lower machine and host machine, and they communicate via RS232 protocol. Lower machine is used to simulate control platform of shearer, and the control circuit taking STC89C52 microcontroller as the core realizes receiving, processing and transmission of external operation signal. Host machine uses 3DMax modeling software to create required model of virtual scene, builds virtual scene by Quest3D three engine development platform, and controls the model according to order of the lower machine. The system implements virtual training function of shearer, shortens training cycle, and reduces training cost.